Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
485
datasets available to search
ShareScore release 0.9.0
Dataset results
485 results for “new diatom species”
FIGURE 1 in Stauroneis kingstonii sp. nov. (Bacillariophyta: Naviculales), a new diatom species from the Black Swamp, Arkansas, USA
FIGURE 1. The Cache River watershed, Arkansas, USA. Station 14 is the Stauroneis kingstonii type locality. Filled circles indicate numbered sampling stations where Stauroneis kingstonii occurred and unfilled circles indicate where valves did not occur in samples.
FIGURES 2–9 in Stauroneis kingstonii sp. nov. (Bacillariophyta: Naviculales), a new diatom species from the Black Swamp, Arkansas, USA
FIGURES 2–9. Size diminution series of Stauroneis kingstonii, LM, DIC. Fig. 3. Holotype specimen (ANSP GC-65192). All images in valve view and at same scale; scale bar (Fig. 2) = 10 μm.
FIGURES 66–77. Halamphora montana. 66–70 in Taxonomic studies of the diatom genus Halamphora (Bacillariophyceae) from the mountainous regions of southwest China, including the description of two new species
FIGURES 66–77. Halamphora montana. 66–70. LM. Valve views showing size diminution series. Scale bars = 10 μm for all LM figures. 71–77. SEM. 71, 73, 74, 76. External views. 71, 74. Entire valve showing shape of the valve. 73. View of curved distal raphe end. 76. View of proximal raphe and larger areolae beneath the raphe ledge lie in a shallow depression. 72, 75, 77. Internal views. 72. Entire valve view. 75. View of valve end, with curved distal raphe ends and helictoglossa. 77. Central area with evident interrupted dorsal striae. Scale bars shown in each SEM figure.
FIGURES 40–44 in Three new species of the diatom genus Halamphora (Bacillariophyta) from the prairie pothole lakes region of North Dakota, USA
FIGURES 40–44: SEM. Halamphora attenuata sp. nov. Fig. 40. External whole valve view. Fig. 41. Detail of external valve center showing axial row of biseriate striae (arrow). Fig. 42. Detail of the internal valve center showing the transition from biseriate to uniseriate
FIGURES 29–39 in Three new species of the diatom genus Halamphora (Bacillariophyta) from the prairie pothole lakes region of North Dakota, USA
FIGURES 29–39: LM. Halamphora attenuata sp. nov. Single valves showing size range. Fig. 31. Holotype specimen. Scale bar = 10 μm.
FIGURES 23–28 in Three new species of the diatom genus Halamphora (Bacillariophyta) from the prairie pothole lakes region of North Dakota, USA
FIGURES 23–28: SEM. Halamphora pertusa sp. nov. Fig. 23. External whole valve view. Fig. 24. Detail of external valve apex. Fig. 25. Detail of the external areolae structure, showing internal biseriate sieve plate (arrow). Fig. 26. Interior whole valve view. Fig. 27. Detail of interior valve center showing longitudinal band of silica (arrow). Fig. 28. Detail of valve interior showing biseriate striae.
FIGURES 10–14 in Three new species of the diatom genus Halamphora (Bacillariophyta) from the prairie pothole lakes region of North Dakota, USA
FIGURES 10–14: SEM Halamphora pratensis sp. nov. Fig. 10. External whole valve view. Fig. 11. Internal whole valve view. Fig. 12. Detail of valve apex showing marginal ridge wrapping around distal raphe end to the ventral margin (arrow). Fig. 13. Detail of internal valve center showing thickened central virgae (arrow). Fig. 14. Whole frustule in dorsal girdle view showing girdle bands with two rows of poroids. Scale bars = 1 μm.
FIGURES 15–22 in Three new species of the diatom genus Halamphora (Bacillariophyta) from the prairie pothole lakes region of North Dakota, USA
FIGURES 15–22: LM. Halamphora pertusa sp. nov. Single valves showing size range. Fig. 15. Holotype specimen. Scale bar = 10 μm.
FIGURES 1–9 in Three new species of the diatom genus Halamphora (Bacillariophyta) from the prairie pothole lakes region of North Dakota, USA
FIGURES 1–9: LM. Halamphora pratensis sp. nov. Single valves showing size range. Fig. 1. Holotype specimen. Scale bar = 10 μm.
FIGURES 108–113 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 108–113. Oricymba voronkinae sp. nov. 108. external view. 109–113, internal views. 108. Girdle view showing distinct marginal ridge and striae extending from valve face to mantle. 109. Low magnification valve view with distinct central nodule present. 110, 111. Central area demonstrating lack of an intermission and two elongate-elliptical stigma openings occluded by a dendritic structure. 112, 113. Apices with distinct helictoglossae offset from axial area. Siliceous granules are present around aveoli. Porelli area restricted to the mantle. Scale bars = 5 μm in Fig. 108; 10 μm in Fig. 109; 1 μm in Figs 110, 112; 0.5 μm in Figs 111, 113.
FIGURES 74–101 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 74–101. Oricymba voronkinae sp. nov. LM. Valve views showing size range. Holotype is illustrated in Fig. 75. Scale bar = 10 μm.
FIGURES 70–73 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 70–73. Oricymba perjaponica, comb. nov. SEM, external views. 70. Low magnification valve view. The arched raphe and stigma opening are evident. 71. Central area showing dilated proximal raphe ends and round stigma opening. Rectangular striae with subtending dendritic coverings are evident. 72. Axial area showing striae structure and presence of marginal ridges. 73. Apex with pore field porelli physically separate and structurally differentiated from areolae. The distal raphe end does not bisect the pore field. Scale bars = 10 μm in Fig. 70, 1 μm in Figs 71, 72 and 0.5 μm in Fig. 73.
FIGURES 102–107 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 102–107. Oricymba voronkinae sp. nov. SEM, external views. 102, 103. Low magnification valve views showing arched raphe and round stigma opening. 104, 105. Central area with dilated proximal raphe ends and round stigma opening. Marginal ridge is evident. 106. View of striae with the overlay of silica to form the characteristic striae with subtending dendritic coverings. The marginal ridge is evident. 107. Apex with strongly hooked distal raphe end not bisecting the apical pore field. Pore field restricted to mantle. Scale bars = 10 μm in Figs 102, 103; 1 μm in Fig. 104; 2 μm in Fig. 105; 0.5 μm in Figs 106, 107.
FIGURES 56–69 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 56–69. Oricymba perjaponica, comb. nov.. LM. Valve views showing size range. Scale bar = 10 μm.
FIGURES 50–55. Oricymba subovalis. 50, 51 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 50–55. Oricymba subovalis. 50, 51, external views; 52–55, internal views. 50, 51. Apices of valve, showing apical pore fields not bisected by distal raphe ends and porelli restricted to the mantle. 52. Low magnification view of valve. 53, 54. Central area showing the raphe lacks an intermissio, and the two stigma opening are occluded by dendritic structures. Siliceous nodules line the striae openings. 55. Apex with a distinct helictoglossa evident. Porelli are occluded by siliceous granules. Scale bars = 0.5 μm in figs 50, 54, 55; 1 μm in figs 51, 53; 10 μm in fig. 52.
FIGURES 44–49. Oricymba subovalis. SEM, external views. 44–46 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 44–49. Oricymba subovalis. SEM, external views. 44–46, low magnification view showing general nature of the valves. Note the absence of the marginal ridge. 47, 48. Central area showing the dilated proximal raphe ends, prominent, round stigma opening and narrowly rectangular areolae with dendritic internal coverings. 49. Axial area with arched raphe and striae with hemispherical areoale along the axial area. Scale bars = 10 μm in figs 44, 45; 5 μm in fig. 46; 1 μm in figs 47–49.
FIGURES 22–25 in The diatom genus Oricymba in Vietnam and Laos with description of one new species, and a consideration of its systematic placement
FIGURES 22–25. Oricymba japonica, SEM, external views. 22. Low magnification view showing overview of valve. The arched nature of the raphe is evident. 23. Central area with dilated proximal raphe ends, rounded stigma opening and corroded or incompletely formed striae. 24. Axial area showing arched raphe. 25. Apex, with highly deflected distal raphe end and porelli of the apical pore field evident. Scale bars = 1 μm.
FIGURES 23–30. Gomphonema shanghaiensis, SEM. Internal view. 23–28 in Gomphonema shanghaiensis sp. nov., a new diatom species (Bacillariophyta) from a river in Shanghai, China
FIGURES 23–30. Gomphonema shanghaiensis, SEM. Internal view. 23–28. Internal center. Deflected central raphe endings, internal openings of the stigmata. 29. Interior view of the headpole showing the large helictoglossae and pseudosepta. 30. Internal view of footpole showing the helictoglossae, pseudosepta and raphe slit. Scale bars = 2 μm.
FIGURES 1–8 in Gomphonema shanghaiensis sp. nov., a new diatom species (Bacillariophyta) from a river in Shanghai, China
FIGURES 1–8. Light microscopy of Gomphonema shanghaiensis, valve views showing the size diminution series. Scale bar = 10 μm.
FIGURES 9–14. Gomphonema shanghaiensis W in Gomphonema shanghaiensis sp. nov., a new diatom species (Bacillariophyta) from a river in Shanghai, China
FIGURES 9–14. Gomphonema shanghaiensis W. Zhang & Kociolek, SEM. External and internal views. 9–11. Exterior view of a whole valve, showing the valve variability, straight raphe with rounded proximal ends, gibbous center portion, round foot pole and rostrate to narrow round headpole. 12–14. Interior view of differently shaped whole valves, showing pseudosepta at both ends and offset helictoglossae. Scale bars = 10 μm.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.